diff --git a/RPi/pyRF24Network/examples/helloworld_rx.py b/RPi/pyRF24Network/examples/helloworld_rx.py
index b0b9309e..c091841d 100755
--- a/RPi/pyRF24Network/examples/helloworld_rx.py
+++ b/RPi/pyRF24Network/examples/helloworld_rx.py
@@ -51,7 +51,7 @@
     network.update()
     while network.available():
         header, payload = network.read(12)
-        ms, number = unpack('<qi', payload)
+        ms, number = unpack('<LL', payload)
         print 'Received payload # ', number, ' at ', ms, ' from ', oct(header.from_node)
     time.sleep(1)
 
diff --git a/RPi/pyRF24Network/examples/helloworld_tx.py b/RPi/pyRF24Network/examples/helloworld_tx.py
index 3f35ec15..567d3af7 100755
--- a/RPi/pyRF24Network/examples/helloworld_tx.py
+++ b/RPi/pyRF24Network/examples/helloworld_tx.py
@@ -52,7 +52,7 @@
     if ( now - last_sent >= interval  ):
         last_sent = now
         print 'Sending ..',
-        payload = pack('<qi', millis(), packets_sent )
+        payload = pack('<LL', millis(), packets_sent )
         packets_sent += 1
         ok = network.write(RF24NetworkHeader(other_node), payload)
         if ok: